Answer:
- Tigris
- Nile
- Euphrates
Step-by-step explanation:
These rivers have existed in part of the world's oldest known civilizations:
- Mesopotamia (Tigris and Euphrates Rivers)
- Ancient Egypt (Nile River)
The Indus River has only been around about 4,500 years. The Yellow River has only been around about 2,000 years. This definitely crosses out these options.
Hope it helps!